DISASTER ALARM SYSTEM FOR DENSELY POPULATED AREA

摘要

The present invention relates to a disaster warning system in a densely populated area that can quickly spread disaster information in a densely populated area, comprising: a transmitter configured to collect disaster information and transmit a disaster broadcast based on the disaster information; And an alarm device that receives the disaster broadcast from the transmitter and propagates the received disaster broadcast to the surroundings through a plurality of speakers arranged in different directions, wherein the alarm device is based on the movement direction of the wind. Controls the volume of the plurality of speakers.